Hypothesis Testing on Population Proportion Wk5S2
Quiz by Queeny Joyce Sebastian
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- Q1
A survey conducted last year by the barangay health workers showed that 20% of the students smoked. This year, a new survey is conducted on 150 students selected randomly from the same school. It was found out that 35 of them smoke. Test if the claim has decreased at α = 0.01 level. Formulate the correct alternative hypothesis.
Ho: p < 0.20
Ha: p = 0.20
Ha: p < 0.20
Ho: p ≠ 0.20
30s - Q2
In testing hypothesis involving population proportion, when do we say that the sample size (n) is sufficiently large?
if n/p<5, n/q<5
if n>30
if n<100
if np>5, nq>5
30s - Q3
It is a part of the population with a particular trait expressed in decimal, percent, or fraction.
Population Proportion
Sample Proportion
Sample
Proportion
30s - Q4
Twenty-eight percent (28%) of all Masagana High School students believe that Monday will be a rainy day. You take a sample of 50 students and find that 15 of them believe Monday will be a rainy day. What does 50 represent?
p
p hat
x
n
30s - Q5
In testing hypothesis involving population proportion, which of the following is appropriate to use?
t-test
x-test
p-test
z-test
30s - Q6
If the value of p is 0.45, what is the value of q?
0.54
0.55
0.45
0.46
30s - Q7
A new proposition on a ballot wants to know whether it is likely to pass upon obtaining more than 50% of the vote. A poll is taken and 571 out of 1,000 people support the proposition. What is the value of the test statistic?
4.10
2.37
3.46
4.49
120s